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LED Jellies 

Make] Projects 

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build, hack, tweak, share, discover,- 

LED Jellies 

Written By: Angela Sheehan 



• Hot glue gun (1) 


Quilt batting (1) 

• Marker (1) 


Fabric (1) 

or pencil 


Ribbon M) 

• Needled) 


Thread M) 

Needlenose pliers (1) 


Plastic bubble (1) 

• Scissors (1) 

from arcade or toy vendina machine 

• Sewing pins (1) 


Diffused LEDs (2 per jelly) 

• Taped) 


Rare earth magnets (3 per jelly) 
3 per jelly 



Coin cell battery (2 per jelly) 


Who doesn't love LED throwies? And who can resist adorable sea creatures? 

Here's how to make a jellyfish-shaped casing for LED throwies that you can stick to any 
metal surface. The throwies are easily removable so you can "refill" the jelly and use it over 
and over. 

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LED Jellies 

Step 1 — Cut out pieces 

• Print and use the attached pattern templates to cut out 1 circle of batting (-5.5" diameter) 
and 2 circles of fabric (-8" diameter). 

• These templates are made for plastic bubbles that are about 2" in diameter. If you 
have a bigger or smaller bubble you can adjust as needed. 

• Cut some pieces of ribbon for your "tentacles." I made mine ~6" long. The number will 
depend on your personal tastes and the size of the plastic bubble. This example has about 
9 tentacles. 

Step 2 — Attach Tentacles 


# Take the plastic bubble and glue your ribbon tentacles to the clear top section. 

• Make sure not to glue the top and bottom of the bubble together - you'll want to be 
able to open it up and place your throwie in later on. I drew a line to help keep my 
tentacles even and out of the way. 


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LED Jellies 

Step 3 — Sew the body 

• Place your batting, centered, on top of the 2 pieces of fabric. Fold the fabric over the 
batting and pin. 

• With a needle and thread, sew through your layers of fabric and batting ~ 1/4" from the 
edge of your overlap. Be careful not to do any back stitching. When you are finished, pull 
the thread to gather the fabric and make a scrunchy jellyfish shape (do not knot or tie off 
just yet). 

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LED Jellies 

Step 4 — Glue the body 

• Place your jelly body over the top of the plastic bubble. If you need to, adjust the gather so 
that it is snug and tie a knot to finish it. 

• Glue the fabric to the plastic bubble, covering the tops of the ribbon tentacles. Again, make 
sure not to overlap the bottom; leave -1/4" of space to work with. 

Step 5 — Get those LEDs ready 

• Take your LEDs and use a pair of 
pliers to bend the leads at right 
angles, with the anode (longer lead) 
on "top." This will give you more 
space inside the bubble and also 
point the light upwards. Leave 
-1/8" space between the leads, just 
enough to slide the battery between 


Add a drop of hot glue 
between/around the leads 
before the bend to make sure they 
don't accidentally touch. 


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LED Jellies 

Step 6 — Make throwies 

• Step A: Slide an LED onto one of your batteries (if the leads extend past the battery, 
shorten them with some wire cutters). 

• Wrap it up in tape (same as original Throwie tutorial), making sure that it is nice and 
secure and doesn't flicker. 

• Place one of your magnets on top (positive side) and wrap up some more so it doesn't 

• Repeat Step A with your second LED, and place it on top of the magnet. 

• I oriented my LEDs opposite each other to cast more light throughout the jelly. Place a 
second magnet on top of that and wrap up with more tape. 

• You don't really need this other magnet, but it adds a little extra holding power. 


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LED Jellies 

Step 7 — Assemble the jelly 

• Your final magnet will attach to the bottom of the plastic bubble and hold your throwie in 
place. Make sure it is oriented the right way before gluing by testing it out on the bottom of 
the throwie "pile." 

• Hot-glue the magnet to the center of the inside of the plastic bubble and place your throwie 
on top. Then just snap the top of the bubble back on and enjoy! 

• At this point you can add some finishing touches; maybe some embroidery or a 
happy face. I separated the strands of my ribbon tentacles to get more of the 
wispy/stringy look. You can also try out different combinations of LED colors and plastic 

• Although these are throwies, the plastic bubbles are pretty brittle. I don't 
recommend tossing them at things. I had a few bounce off surfaces and break when i 
the magnet didn't catch. 



This document was last generated on 2012-10-31 02:23:44 AM. 

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